Aug 1, 1976

Graft-versus-host reactivity and renal allograft survival in rats given allogeneic spleen cells or spleen allografts

S J SilberP J Morris


Selective recruitment of antigen-sensitive cells (ASC) into the spleen as a method of inducing specific suppression was attempted by intravenous injection of either DA or Lewis spleen cells 24 hr before a (DA X Lewis)F1 renal allograft into a Lewis or DA recipient, either with or without a splenectomy. This led to suppression of rejection in the DA recipient and delayed rejection in the Lewis recipient. Splenectomy produced a minimal augmentation effect. Assay of graft-versus-host (GVH) reactions in (DA X Lewis)F1 rats by a popliteal node assay showed that injection of allogeneic DA or Lewis spleen cells 48 hr before the assay significantly reduced the reaction produced by node lymphocytes but not spleen lymphocytes, suggesting a loss of ASC from the lymph nodes. Lewis spleen allografts did not produce such a significant reduction in the GVH reactivity of DA node lymphocytes as intravenous Lewis cells, whereas DA spleen allografts led to an increased GVH reactivity of Lewis node lymphocytes. From these studies, it is not possible to attribute the suppression produced by the intravenous injection of allogeneic cells to selective recruitment of antigen-sensitive cells to the spleen.

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Mentioned in this Paper

Graft-vs-Host Disease
Graft Vs Host Reaction
Lymph Nodes
Graft Rejection
Transplantation, Homologous
Rats, Inbred Lew
Kidney Transplantation
Rats, Laboratory

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